I think amenities are okay, although they probably need more balancing. For a hive mind they are pretty boring since it's just a checklist of something you have to build another of at certain population milestones, but it's their balance vs. not having to have consumer goods.
For my megacorp, I just build enough commercial zones to cover my consumer goods needs with the trade policy and that alone generates enough spare energy to never need technicians and enough amenities to not need to build any other amenity buildings. I don't need civilian factories, so I can use the minerals that would have gone to those for more alloy production. And this was with being in a galaxy with entirely spiritualist zealots and megachurches that all hated me so I couldn't even build branch offices for other bonuses.
I plan on trying some other builds out as well, I'm having a lot of fun with the options in this patch, each empire really feels different now.
For my megacorp, I just build enough commercial zones to cover my consumer goods needs with the trade policy and that alone generates enough spare energy to never need technicians and enough amenities to not need to build any other amenity buildings. I don't need civilian factories, so I can use the minerals that would have gone to those for more alloy production. And this was with being in a galaxy with entirely spiritualist zealots and megachurches that all hated me so I couldn't even build branch offices for other bonuses.
I plan on trying some other builds out as well, I'm having a lot of fun with the options in this patch, each empire really feels different now.